Javascript deep array merge and map exercise

index.js

var e = {
  itag: ['a', 'b'],
  s: ['a', 'b'],
  url: ['a', 'b']
}

var f = {
  itag: ['c', 'd'],
  s: 's',
  url: ['c', 'd']
}

var g = [
  {
    itag: 'a',
    s: 'a',
    url: 'a'
  },
  {
    itag: 'b',
    s: 'b',
    url: 'b'
  },
  {
    itag: 'c',
    s: 's',
    url: 'c'
  },
  {
    itag: 'd',
    s: 's',
    url: 'd'
  }
]

Solution by @soyuka : https://gist.github.com/soyuka/61402fb9b20368a9a5ea138f8e01ee1d